EP0802092A1 - Initiateur résistant à haute pression protégé contre les décharges électrostatiques par un varistor à oxyde de métal intégral - Google Patents

Initiateur résistant à haute pression protégé contre les décharges électrostatiques par un varistor à oxyde de métal intégral Download PDF

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Publication number
EP0802092A1
EP0802092A1 EP97302557A EP97302557A EP0802092A1 EP 0802092 A1 EP0802092 A1 EP 0802092A1 EP 97302557 A EP97302557 A EP 97302557A EP 97302557 A EP97302557 A EP 97302557A EP 0802092 A1 EP0802092 A1 EP 0802092A1
Authority
EP
European Patent Office
Prior art keywords
shell casing
high pressure
pressure resistant
glass
metal oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97302557A
Other languages
German (de)
English (en)
Inventor
David Dean Hansen
David Brian Monk
Virginia Edwards Chandler
Mark Budge Woodbury
Harry William Ii Miller
Gerold Wayne Pratt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Morton International LLC
Original Assignee
Morton International LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Morton International LLC filed Critical Morton International LLC
Publication of EP0802092A1 publication Critical patent/EP0802092A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/13—Bridge initiators with semiconductive bridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • F42B3/188—Safety initiators resistant to premature firing by static electricity or stray currents having radio-frequency filters, e.g. containing ferrite cores or inductances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26029—Ignitors

Definitions

  • the present invention relates to an electro-explosive device or initiator for an automobile passenger restraint electrical system, and more particularly, to an initiator which includes a metal oxide varistor for electro-static protection of the electro-explosive device.
  • Such restraint systems encompass a reaction canister which houses a gas generator or inflator, and an air bag in an uninflated condition.
  • the gas generator In response to a collision, the gas generator generates gas to inflate and expand the air bag to protect the vehicle occupant.
  • Inflators for automobile passive restraint systems or other devices require a pyrotechnic initiator or electro-explosive device (EED) to operate the inflator.
  • EED electro-explosive device
  • an electo-explosive device starts the material of the gas generator burning.
  • the inflator initiator is connected to a crash sensor that is positioned adjacent the initiator or at a remote location in the vehicle.
  • the crash sensor sends an electrical signal to the initiator.
  • the initiator fires into the igniter chamber and ruptures a container, which holds an igniter material, commonly a mixture of boron and potassium nitrate.
  • the initiator consists of a pair of spaced parallel electrical pins joined at one end by a bridge wire which is embedded within pyrotechnic material.
  • the pyrotechnic material burns with a very hot flame and ignites solid fuel gas generant pellets contained in the combustion chamber. The pellets release a nitrogen gas, which travels through the diffuser chamber and into the protective air bag for protecting occupants of the vehicle.
  • EED electro-explosive devices
  • the undesirable energy may be either, but not limited to, electro-static discharge (ESD), radiant electromagnetic interference (EMI) or radio frequency interference (RFI). Protection against such radiant energy will herein be referred to as EMI/RFI protection.
  • ESD electro-static discharge
  • EMI radiant electromagnetic interference
  • RFID radio frequency interference
  • a problem with the electro-explosive device of Holmes is that incorporation of the EMI/RFI protection directly within the confines of the EED increases both the size of the device, as well as, manufacturing costs and time. Moreover, the manufacturer of the gas generator is limited to a specific EED design.
  • U.S. Patent No. 4,103,619 discloses an electro-explosive device wherein the contact pins of the device are sealed with glass and a resistant shunt is provided for protecting the bridge circuit from extraneous energy.
  • One disadvantage of the resistant shunt is a percentage of the energy being supplied to the initiator during the deployment sequence is shunted to ground, thus requiring substantially more total energy than would be needed if the resistant shunt was not present.
  • U.S. Patent No. 4,422,381 discloses an igniter incorporating a ferrite sleeve (EMI/RFI) and static discharge disc (ESD).
  • the static discharge disc relies on a "spark gap" method for ESD protection and is limited in its usefulness to a specific type of electrostatic discharge voltage, i.e. typically greater than 25,000 volts dc.
  • the current invention utilises the metal oxide varistor which can tailor the ESD protection to a wider voltage level range by varying the dimension of the varistor.
  • the current invention is designed to shunt to ground any extraneous voltage in excess of 500 volts dc.
  • Figs. 1-6 disclose various prior art initiators.
  • Fig. 1 discloses a low cost igniter, manufactured by ICI Explosives of Tamaqua, Pennsylvania, which incorporates a spark gap ring for ESD protection.
  • Fig. 2 illustrates a hybrid initiator, also manufactured by ICI Explosives, which includes two pins and a shunt wire, in essence acting as a coaxial initiator.
  • Fig. 3 illustrates another low cost initiator, such as the initiator manufactured by Quantic Industries of San Carlos, California.
  • the prior art initiator of Fig. 4 is a pin type initiator using an offset co-axial header design, such as the initiator manufactured by Special Devices Inc. of Newhall, California.
  • Figs. 5 discloses a leadwire initiator having a centered co-axial design, also manufactured by ICI Explosives of Tamaqua, Pennsylvania.
  • Fig. 6 is an advanced driver initiator having a coaxial centered design, manufactured by OEA Inc. of Englewood, Colorado.
  • OEA Inc. of Englewood, Colorado.
  • MOV metal oxide varistor
  • metal oxide varistors are used in surge suppression devices, such as computers.
  • MOV metal oxide varistors
  • the high pressure resistant initiator of the present invention serves as an electrical connection between the automotive passive restraint system electrical harness assembly and the electro-explosive device circuit element bridge.
  • EED initiator
  • SCB semiconductor bridge
  • PCB printed circuit bridge
  • thick film/thin film pyrotechnic mixture deposition a traditional hot wire bridge.
  • EED initiator
  • MOV integral metal oxide varistor
  • the metal oxide varistor is an improvement over the spark gap method of the prior art because of improved heat dissipating characteristics due to the placement of the metal oxide varistors between the socket pins and the collar.
  • the MOV can be tailored to meet customer specific voltage protection by varying the thickness and length of the MOV.
  • Another advantage of the present invention is the possibility of using a manufacturing technique of either laser welding, adhesive bonding or a combination thereof, between various components to provide a hermetic seal without damaging the initiator.
  • the charge holder and closure disc assembly also utilizes a laser welded/adhesive bond to provide a pressure resistant and hermetic seal.
  • the stainless steel shell casing, the laser weld/adhesive bond, and the glass to metal seal header provide high pressure protection.
  • Still another object of the present invention is to provide a high pressure resistant initiator having an integrated circuit bridge element with a deposited explosive layer and a channel for locating the integrated circuit bridge between pins of the glass to metal seal header.
  • a high pressure resistant initiator of an automobile passenger restraint electrical system which includes a shell having an upper chamber and a lower chamber. Means connect the initiator to an electrical connector of a vehicle, the lower chamber is capable of receiving the electrical connector. Electrostatic discharge protecting means are disposed in the shell for protecting the initiator from electrostatic discharge. Means for housing a pyrotechnic material are attached to the shell. A glass to metal seal header is also attached to the shell. The glass to metal seal header includes integrated circuit means for igniting the pyrotechnic material. Means hermetically seal the glass to metal seal header to the shell.
  • Figs. 1-6 are cross-sections of known prior art initiators.
  • Fig. 7 is a cross-section of a first embodiment of the high pressure resistant initiator of the present invention.
  • Fig. 8 is an enlarged cross-section of a first molded insert of the high pressure resistant initiator of the present invention.
  • Fig. 9 is an enlarged cross-section of a second molded insert according to the present invention.
  • Fig. 10 is a cross-section of a second embodiment of the initiator of the present invention.
  • Fig. 11 is a cross-section of a still another embodiment of the initiator of the present invention.
  • Fig. 12 is a cross-section of the initiator of Fig. 11, taken along line A-A.
  • Fig. 13 is a cross-section of a fourth embodiment of the initiator of the present invention.
  • Fig. 14 is a cross-section of a fifth embodiment of the initiator of the present invention.
  • the initiator is located within a gas inflator (not shown).
  • the initiator includes a shell or casing 10.
  • Shell casing 10 is made of machined stainless steel or either pressed or injection molded stainless steel. It should be appreciated that the shell casing can be made from other materials without departing from the scope of the invention.
  • Shell casing 10 is divided into two chambers, lower chamber 12 and upper chamber 14.
  • Lower chamber 12 facilitates the electrical interface with an automobile passive restraint system electrical harness assembly 19 (Fig. 10).
  • Lower chamber 12 receives a first pre-molded plug 20.
  • plug 20 includes a cavity 18, apertures 22 and an electrical connector interface 16 which mates aligns with the mating connector orientation feature of the electrical harness assembly 19.
  • Plug 24 includes a cavity 28 and apertures 26 which support and align socket pins 36 and a metal oxide varistor 30, which will be described further herein. Both plugs 20 and 24 can be made of a plastic material.
  • Socket pins 36 extend through shell casing 10 and provide the electrical connection between the electrical harness assembly 19 and the integrated circuit initiator 46.
  • metal oxide varistor 30 surrounding each of the socket pins 36 is a metal oxide varistor 30.
  • Metal oxide varistor 30 is tubular-shaped and is interference fitted over the socket pins. The length and thickness of metal oxide varistor 30 determines the actual breakdown voltage and thus, allows conformance to specific customer requirements.
  • Metal oxide varistors can be fabricated by pressing and sintering a mixture of metal oxide powder at a temperature of and about 1300°C to form a generally hard, brittle ceramic body. It should be appreciated that the MOV of the present invention can be produced from other suitable materials and methods, which will be described herein. When assembled, metal oxide varistors 30 extend into both cavities 28 and 18 of plugs 24 and 20.
  • Lower chamber 12 also includes a low ohmic resistance metal sleeve 34 which provides the electrical connection between metal oxide varistor 30 and shell casing 10.
  • Sleeve 34 includes apertures 32, through which socket pins 36 and the respective surrounding metal oxide varistors 30 pass when the initiator is assembled. Sleeve 34 is sandwiched between plugs 20 and 24 such that the respective apertures 26, 32 and 22 are in alignment.
  • a glass to metal seal provides a way to hermetically pass an electrical conductor from one environment to another.
  • the glass in addition to providing the seal, acts as an insulator between the pins and between the pins and the shell casing.
  • the glass to metal seal assembly of the present invention is manufactured by fixturing the shell casings and the pins therein within a graphite plate. The glass mixture is placed within the desired area and the fixture is then placed on a belt driven conveyor which passes the fixture through a high temperature oven which elevates the temperature of the glass to its liquid state. Upon exiting the cool down chamber of the oven, the glass solidifies and adheres to the metal surfaces forming a hermetic seal between the pins and glass and the shell casing and the glass.
  • Header 40 provides an attachment plane for the integrated circuit 46.
  • Integrated circuit 46 can be a semiconductor bridge, a printed circuit bridge using conventional suitable refractory metal, a thick/thin film of pyrotechnic mixture deposition bridge or a "hot wire" brid e device for igniting pyrotechnic material 54 enclosed in a charge holder 48 of the initiator.
  • Header 40 includes pins 42 which mate with socket pins 36. Header pins 42 typically have a diameter in the range of 0.020 in.
  • the glass to metal seal header 40 is attached to shell casing 10 by either a circumferential laser weld joint or an adhesive bonding method as indicated at 38 in Fig. 7.
  • the laser weld/adhesive bond process provides a superior circumferential hermetic seal.
  • charge holder 48 which contains the pyrotechnic material, and a closure disc assembly 44.
  • charge holder 48 is attached to header 40, and disc 44 is attached to charge holder 48 by either circumferential laser weld joint/adhesive bonding method 38.
  • Fig. 10 discloses a second embodiment of the high pressure resistant initiator of the present invention.
  • the embodiment of Fig. 10 is identical to the previous embodiment, with the exception of solid feed through pins 50 which are encapsulated in the glass to metal seal 40.
  • pins 50 do not include sockets, as in the first embodiment, the apertures 26 of plug 24 can be slightly smaller.
  • the plug 20 and sleeve 34 are press fit into chamber 12 of shell casing 10.
  • a metal oxide varistor 30 is interference fitted around each of the contact pins 36.
  • a sub-assembly consisting of contact pins 36 and metal oxide varistor 30 is then inserted into cavities 26 and 28 of plug 24. This sub-assembly is next inserted into cavity 14 of shell casing 10 until the solid ends of contact pins 36 protrude into apertures 22 of plug 20.
  • the pins 42 of glass to metal seal header 40 which has an integrated circuit 46 attached, is inserted into the socket of pins 36 and charge holder 48 is placed over header 40.
  • a circumferential weld joint/adhesive bonding method 38 is performed to attach the header to the shell casing 10 and the charge holder 48 to header 40.
  • Pyrotechnic powder mixture 54 is then loaded into charge holder 48 and closure disc 44 is attached to the charge holder 48 by a circumferential weld joint/adhesive bonding method 38.
  • the shell casing 10 is then mounted in a gas inflator by any suitable means.
  • the plug 20 and sleeve 34 are press fit into chamber 12 of shell casing 10.
  • the plug 20 and sleeve 34 are press fit into the chamber 12 of shell casing 10.
  • the glass to metal, seal header assembly consisting of header 40 and pins 50 is then inserted into cavity 26 of plug 24 and metal oxide varistor 30 is interference fitted around each of the contact pins 50, and metal oxide varistor 30 is inserted into cavity 28 of plug 24.
  • This sub-assembly is next inserted into cavity 14 of shell casing 10 until the solid ends of pins 50 protrude through apertures 22 of plug 20.
  • Charge holder 48 is placed over header 40 and a circumferential weld joint/adhesive bonding method 38 is performed to attach the header to shell casing 10 and charge holder 48 to header 40.
  • Pyrotechnic powder mixture 54 is then loaded into charge holder 48 and closure disc 44 is attached thereto by a circumferential weld joint/adhesive bonding method 38.
  • Shell casing 10 is then mounted in a gas inflator by any suitable means.
  • Shell casing 10 includes a single pre-molded plastic plug 56 press fit in lower chamber 12.
  • Plug 56 is cup-shaped and includes an interface feature along its inner surface for mating with a connector of an electrical harness assembly (not shown) of the restraint system.
  • Upper chamber 14 of shell casing 10 includes metal oxide varistor 30 and glass to metal seal header 40.
  • Metal oxide varistor 30 can be either a) formed about each of the pins 50 by consolidating a formulation of reconstituted metal oxide powders followed by a sintering operation; b) an integral cohesive compound of the glass to metal seal header formed by blending the metal oxide powder with the glass mixture followed by a sintering operation, thus, forming an integral cohesive metal oxide varistor and glass to metal seal; or c) a preformed slug or insert which is formed by consolidating metal oxide powders and sintering the slug to form a hardened ceramic material which is pressed into position during the manufacturing process.
  • the metal oxide varistor can be located on an integrated circuit chip package disc within chamber 14, or the integrated circuit 46 and varistor can be located on a single integrated circuit disc.
  • glass to metal seal header 40 includes a channel 60 which functions as an alignment mechanism for the integrated circuit 46 between pins 50.
  • an explosive composition 62 which acts as the primary ignition source, is deposited directly onto the integrated circuit bridge element.
  • the charge holder 48 and closure disc 44 assembly which contains the pyrotechnic mixture 54.
  • the charge holder 48 is attached to shell casing 10 and disc 44 is attached to holder 48 by circumferential laser weld joint/adhesive bonding method 38.
  • Fig. 13 is identical to the embodiment of Figs. 11-12, with the exception of a closure cup 68 which replaces the charge holder 48 and closure disc 44 assembly of the previous embodiments.
  • Cup 68 is a single unit, closed bottom cup which contains pyrotechnic mixture 54 and is hermetically sealed to shell casing 10 via circumferential laser weld joint/adhesive bonding method 38.
  • Fig. 14 is identical to the embodiment of Figs. 11-12, with the exception that shell casing 10 includes lengthened end wall 8 which serves as the charge holder for the pyrotechnic mixture and therefore eliminates the need for a separate charge holder 48.
  • glass to metal seal header 40 is recessed within shell casing 10.
  • a cupshaped closure disc similar to disc 44 of Fig. 1 1, is attached to side wall 8 of shell casing 10 via circumferential laser weld joint/adhesive bonding method 38.
  • the metal oxide varistor can be formed along with the glass to metal seal to produce an integral cohesive assembly including shell casing 10, pins 50, header 40 and metal oxide varistor 30.
  • the metal oxide varistor can also be a separate component which is inserted into the cavity directly behind glass header 40.
  • Plug 56 is press fit within shell casing 10 until it reaches the bottom of the cavity.
  • An adhesive compound is deposited between pins 50 along the channel 60 to secure the integrated circuit 46 to glass header 40.
  • the integrated circuit 46 is then positioned between pins 50 using the channel 60 as a self-alignment mechanism. Conductive adhesive, wire bond, or solder is used to electrically connect integrated circuit 46 to pins 50.
  • charge holder 48 is then attached to shell casing 10, and pyrotechnic mixture 54 is loaded into charge holder 48.
  • Closure disc 44 is then attached to the charge holder 48 via a circumferential weld joint/adhesive bonding method 38.
  • explosive layer 62 is placed directly onto the integrated circuit bridge element and allowed to dry.
  • the remaining assembly steps are similar to the embodiment of Figs. 11, 13 and 14. It should be appreciated that explosive layer 62 can be used in all embodiments of the present invention.
  • cup 68 is loaded with the pyrotechnic mixture and attached to shell casing 10 by circumferential weld joint/adhesive bonding method 38.
  • pyrotechnic mixture 54 is loaded into the cavity and closure disc 44 is attached to shell casing 10 by circumferential weld joint/adhesive bonding method 38.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)
  • Multi-Conductor Connections (AREA)
EP97302557A 1996-04-15 1997-04-15 Initiateur résistant à haute pression protégé contre les décharges électrostatiques par un varistor à oxyde de métal intégral Withdrawn EP0802092A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/632,700 US5932832A (en) 1996-04-15 1996-04-15 High pressure resistant initiator with integral metal oxide varistor for electro-static discharge protection
US632700 1996-04-15

Publications (1)

Publication Number Publication Date
EP0802092A1 true EP0802092A1 (fr) 1997-10-22

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EP97302557A Withdrawn EP0802092A1 (fr) 1996-04-15 1997-04-15 Initiateur résistant à haute pression protégé contre les décharges électrostatiques par un varistor à oxyde de métal intégral

Country Status (11)

Country Link
US (1) US5932832A (fr)
EP (1) EP0802092A1 (fr)
JP (2) JPH1035400A (fr)
KR (1) KR100260978B1 (fr)
CN (1) CN1097532C (fr)
AR (1) AR006642A1 (fr)
AU (1) AU700900B2 (fr)
BR (1) BR9701787A (fr)
CA (1) CA2201699A1 (fr)
PL (1) PL319476A1 (fr)
ZA (1) ZA972948B (fr)

Cited By (24)

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WO1999036293A1 (fr) * 1998-01-19 1999-07-22 Autoliv Development Ab Dispositif d'amorçage pour un generateur de gaz
WO2000009366A1 (fr) * 1998-08-11 2000-02-24 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Dispositif d'amorçage pyrotechnique a dispositif electronique integre, permettant de declencher un systeme de retenue
FR2784176A1 (fr) 1998-10-06 2000-04-07 Livbag Snc Systeme d'initiation electro-pyrotechnique protege contre les decharges electrostatiques
WO2000034084A1 (fr) * 1998-12-07 2000-06-15 Robert Bosch Gmbh Dispositif d'allumage pour systeme de retenue de vehicule
EP1030159A1 (fr) 1999-02-18 2000-08-23 Livbag SNC Allumeur électropyrotechnique à sécurité d'allumage renforcé
WO2001001061A1 (fr) * 1999-06-25 2001-01-04 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Dispositif d'amorçage avec electronique integree
EP1098162A1 (fr) 1999-11-05 2001-05-09 Livbag S.N.C. Initiateur pyrotechnique à filament photogravé protégé contre les décharges électrostatiques
EP0952045A3 (fr) * 1998-04-20 2001-05-16 TRW Occupant Restraint Systems GmbH & Co. KG Dispositif conteneur de matériau pyrotechnique et son procédé de fabrication
US6247409B1 (en) 1998-06-04 2001-06-19 Trw Occupant Restraint Systems Gmbh & Co., Kg Igniter for a gas generator
DE10133223A1 (de) * 2001-07-09 2002-10-17 Trw Airbag Sys Gmbh & Co Kg Anzünder
DE10133221A1 (de) * 2001-07-09 2002-10-17 Trw Airbag Sys Gmbh & Co Kg Anzünder
EP1043201A3 (fr) * 1999-04-09 2002-11-27 Showa Kinzoku Kogyo Co., Ltd. Appareil générateur de gaz à allumage électrique
EP1139059A3 (fr) * 2000-03-28 2004-05-19 Hirschmann Austria GmbH Dispositif d'allumage d'un système de sécurité
EP1433666A1 (fr) * 2002-12-26 2004-06-30 HONDA MOTOR CO., Ltd. Allumeur destiné pour la connexion à un bus
EP1672748A1 (fr) * 2004-12-15 2006-06-21 AMPHENOL-TUCHEL ELECTRONICS GmbH Contact verrouillable pour un connecteur avec une protection contre des perturbations
DE102005004920B3 (de) * 2005-02-02 2006-08-17 Amphenol-Tuchel Electronics Gmbh Kontaktsicherung für Steckverbinder mit einer Kurzschlussbrücke mit integriertem Schaltelement
EP1710532A1 (fr) * 2005-04-04 2006-10-11 Davey Bickford Initiateur électropyrotechnique de technologie plastique modulable
WO2008112235A1 (fr) * 2007-03-12 2008-09-18 Dyno Nobel Inc. Circuit de protection contre l'allumage d'un détonateur
WO2008152529A1 (fr) * 2007-06-09 2008-12-18 Special Devices, Incorporated Dispositif électro-pyrotechnique non sensible aux tensions faibles
EP2092161A1 (fr) * 2006-11-27 2009-08-26 Halliburton Energy Services, Inc. Appareil et procédé pour carottage à percussion de paroi latérale utilisant un dispositif d'allumage activé par tension
EP2261091A3 (fr) * 2009-06-10 2012-03-14 Autoliv ASP, Inc. Système de protection pour une utilisation avec des gonfleurs et des initiateurs d'airbag
WO2012138580A3 (fr) * 2011-04-08 2014-08-07 Autoliv Asp, Inc. Amorceur à dissipateur de décharge électrostatique moulé
CN110887413A (zh) * 2019-11-27 2020-03-17 西安航天动力研究所 一种高钝感小型化电起爆器
EP3790125A1 (fr) * 2019-09-05 2021-03-10 Aptiv Technologies Limited Ensemble de connexion à dispositif de sécurité passive protégé contre les décharges électriques,prise, connecteur d'airbag et procédé de montage d'un ensemble de connexion

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US6070531A (en) * 1997-07-22 2000-06-06 Autoliv Asp, Inc. Application specific integrated circuit package and initiator employing same
DE19733353C1 (de) * 1997-08-01 1998-12-10 Nico Pyrotechnik Zündeinrichtung für eine Insassenschutzvorrichtung eines Kraftfahrzeuges
US6250952B1 (en) 1997-08-08 2001-06-26 The Whitaker Corporation Air bag connector
US6249228B1 (en) * 1998-10-23 2001-06-19 Trw Inc. Vehicle occupant protection device and system having an anti-theft, anti-tamper feature
GB2347485A (en) 1999-03-05 2000-09-06 Breed Automotive Tech Pretensioner
US6157548A (en) * 1999-03-25 2000-12-05 Illinois Tool Works Inc. Electrically shielded housing
JP4426079B2 (ja) 1999-09-27 2010-03-03 ダイセル化学工業株式会社 イニシエータ組立体
US6357355B1 (en) * 2000-02-10 2002-03-19 Trw Inc. Pyrotechnic igniter with radio frequency filter
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JP3058511U (ja) 1999-06-18
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ZA972948B (en) 1997-11-03
CN1097532C (zh) 2003-01-01
CA2201699A1 (fr) 1997-10-15
PL319476A1 (en) 1997-10-27
US5932832A (en) 1999-08-03
KR970069648A (ko) 1997-11-07
AR006642A1 (es) 1999-09-08
BR9701787A (pt) 1998-11-10
JPH1035400A (ja) 1998-02-10
MX9702543A (es) 1998-03-31

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